Macerator pump



FIG. 1 is a perspective view of a macerator pump showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown are included for the purpose of illustrating unclaimed subject matter and form no part of the claimed design. 

CLAIM The ornamental design for a macerator pump, as shown and described. 